Regarding the natural place (woods, mountaintop, ocean, etc.) I imagine it would depend on the spot. I enjoy hiking and there are a lot of lonely spots in the world with no people in them. In the off chance somebody did come upon you, it would probably be hours before they could even tell anybody and then the "authorities" would have to find you in the middle of nowhere. I am sure it is probably technically illegal, but unless one of you reported it, I am guessing nobody would care enough to do anything about it. Always thought it would be interesting to go on a catfight camping trip, like to the Boundary Waters or Isle Royal.